The Influence of Food Quantity and Photoperiod During the Pre-adult Stages on Flight Muscle Development in Adult Philonthus decorus (Coleoptera: Staphylinidae) and Pterostichus oblongopunctatus (Coleoptera: Carabidae)
Schaick Zillesen van, Pieter G.; Brunsting, Arend M. H
Flight muscle development in adult Philonthus decorus (Gravenhorst 1802) and Pterostichus oblongopunctatus (Fabricius 1787) depends on environmental factors prevailing during larval development. Shortage of food and a photoperiod which deviates from natural conditions during pre-adult development increase the percentage of individuals with conspicuous flight muscles in both species. Following a discussion of these phenomena it is concluded that they represent an adaptation to a deteriorating environment.